converted MCP header definitions to secret refs

[blublinsky]

Description

Type of change

• Refactor
• [ x] New feature
• Bug fix
• CVE fix
• Optimization
• Documentation Update
• Configuration Update
• Bump-up dependent library

Related Tickets & Documents

• Related Issue #
  OLS-2174
• Closes #
  OLS-2174

Checklist before requesting a review

• [ x] I have performed a self-review of my code.
• [ x] PR has passed all pre-merge test jobs.
• If it is a core feature, I have added thorough tests.

Testing

• Please provide detailed steps to perform tests related to this code change.
• How were the fix/results from this change verified? Please provide relevant screenshots or results.

[openshift-ci]

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[raptorsun]

bundle generation needed here

[raptorsun]

logics look good, just need regenerate bundle.
before merging, we need coordinate this PR with #1079 to make sure the bundle test passes

[blublinsky]

/retest

[blublinsky]

/retest

[blublinsky]

/retest

[blublinsky]

/retest

[syedriko]

/retest

[blublinsky]

/retest

[openshift-ci]

@blublinsky: all tests passed!

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